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<html lang="en">
    <head>
        <meta charset="UTF-8">
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        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>Document</title>
    </head>
    <body>
        <h3>用户信息</h3>
        <table border="1">
            <!-- <tr>表示一行 -->
            <tr>
                <th>用户编号</th>
                <th>用户姓名</th>
                <th>用户性别</th>
                <th>用户年龄</th>
            </tr>
            <tr>
                <!-- td表示一列 -->
                <td>1001</td>
                <td>张三</td>
                <td>男</td>
                <td>22</td>
            </tr>
            <tr>
                <td>1002</td>
                <td>李四</td>
                <td>男</td>
                <td>21</td>
            </tr>
            <tr>
                <td>1003</td>
                <td>王五</td>
                <td>女</td>
                <td>20</td>
            </tr>
            <tr>
                <td>1004</td>
                <td>刘六</td>
                <td>男</td>
                <td>23</td>
            </tr>
            <tr>
                <td>1005</td>
                <td>周七</td>
                <td>男</td>
                <td>25</td>
            </tr>
        </table>
    </body>
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